I'm working on the atmospheres of the Solar System bodies, and have been adding the original, pre-terraformed atmosphere compositions to the already existing "Modern Day Earth" composition (77% N2, 20% O2, etc):

Composition Data for Io.

Additionally, while researching Jupiter's moon Io, I remembered I had Aurorae for Io, knowing Jupiter has an intense magnetic field and Io in real life is a huge contributor. So I repositioned the Aurora rings to try to represent the flux tube between Jupiter and Io:

Hera, a fictional lifeterra moon for Jupiter. A bit of "alternate history", if you will. Imagine how different the Solar System might have been if Jupiter managed to form or even snatch an Earth-size moon during the tumultuous beginnings of our star system...

EDIT: I forgot to mention, every ship in this addon will have a max Warp Factor of 24, so be careful. This is to simulate the instant travel available from one side of the universe to the other in seconds in the TPE universe. If you want precision speed, hover your cursor over the boost exponent slider during warp mode, and use the mouse wheel, if you have one. I lost track of how many times I over shot my destination when using the keyboard for warp speed control.

TPE Universe: viewtopic.php?f=3&t=53&p=155#p143I made major changes, so I bumped up the version number extra. The Sol System is now completely different! I also tried to fix bugs. Here's hoping it works.

Finally! A Spaceships mod!: viewtopic.php?f=3&t=53&p=155#p154Really they're just the warp planes from my TPE Universe mod, so if you have that already, you probably don't need this.

And last, but not least: viewtopic.php?f=3&t=53&p=155#p155An update to my terrain mod: I include more sophisticated clouds to be compatible with Rodrigos, but it should be fine on it's own too. I'll leave the simpler version up too. Like the warp planes, this is also included in the TPE Universe, but it's a seperate download for those who don't want the TPE Universe project.

Beware, there is a period calculation bug in SpaceEngine that causes comets not given a Period parameter to show up at the barycenter, so please turn off the comet tails while visiting Sol if you have this mod. To Install, just place in the addons folder, that's it! To uninstall, delete or move to a temporary location.

PlutonianEmpire, your mod is getting awesomer and awesomer, I installed it nearly, only but the readme says ''this *will* reset your catalog galaxy seeds! Write down the first digits of your bookmarks (RS xxxx-, for example)'' I don't quite get it. Does the mod resets the designations of procedural objects only, or is the original procedural catalog wholly revamped? Why writing the 1st digits of my book marks keep my destinations? Looking forward to an explanation.